MAX5969CETE+ Ethernet Power Sourcing Equipment Interface

The MAX5969CETE+ is a sophisticated power interface IC designed by Maxim Integrated, aimed at Power over Ethernet (PoE) applications. This device is compliant with the IEEE 802.3af/at standards, ensuring seamless integration with Ethernet-powered devices such as wireless access points, IP cameras, and VoIP phones. The MAX5969CETE+ is specifically engineered to function as a Power Sourcing Equipment (PSE) interface that facilitates the delivery of power alongside data over standard Ethernet cables.

Equipped with an advanced feature set, the MAX5969CETE+ offers enhanced PoE capabilities. It supplies up to 30W of power per port, enabling it to power a wide range of devices. The integrated power MOSFET and sense resistors contribute to a simplified design, reducing the need for external components and thereby saving valuable PCB space. The device operates over a wide input voltage range, making it versatile for various system designs.

With its built-in detection, classification, and current-limit functions, the MAX5969CETE+ ensures safe and reliable operation. The detection feature verifies the presence of a compatible PoE device before power is applied, preventing damage to non-PoE equipment. The classification function determines the power requirements of the connected device, allowing for efficient power allocation. Current-limit protection prevents overcurrent conditions, safeguarding both the PSE interface and the powered device.

The MAX5969CETE+ also supports I2C-compatible serial communication for advanced control and monitoring, offering system designers the ability to tailor performance to specific applications. The thermal shutdown feature provides additional protection by turning off the power in case of excessive heat, ensuring the longevity of the product and connected devices.

Available in a thermally enhanced 16-pin TQFN package, the MAX5969CETE+ is designed for a compact footprint and can be easily integrated into various networked systems. With its robust design and feature-rich capabilities, the MAX5969CETE+ from Maxim Integrated is an excellent choice for those seeking a reliable and efficient PoE power sourcing solution.